ALEX RAKOSY / CUSTOM MEDICAL STOCK PHOTO / SCIENCE PHOTO LIBRARY ALEX RAKOSY / CUSTOM MEDICAL STOCK PHOTO / SCIENCE PHOTO LIBRARY
Mycobacterium tuberculosis. Light micrograph of a colony of the bacteria Mycobacterium tuberculosis. Here, cords of bacteria are seen growing in aggregates called serpentine cords. Individual bacteria are rod-shaped bacilli, appearing as tiny dots. M. tuberculosis is the cause of tuberculosis (TB) in humans. It is spread by coughing or sneezing, and is inhaled into the lungs. During initial infection, a primary tubercle (lesion) forms in the lung developing into pulmonary TB. TB is still a fatal disease in developing countries and among AIDS patients. Stained with acid fast stain. Magnification: x45 at 35mm size.
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